$OpenBSD: patch-libs_util_posix_socket_system_cpp,v 1.1 2017/05/22 20:30:52 espie Exp $

Index: libs/util/posix/socket_system.cpp
--- libs/util/posix/socket_system.cpp.orig
+++ libs/util/posix/socket_system.cpp
@@ -33,6 +33,7 @@
 #include 	<netdb.h>
 #include	<signal.h>
 #include	<cstring>
+#include 	<unistd.h>
 
 #include	<aqsis/util/logging.h>
 
